80 lines
2.7 KiB
JavaScript
80 lines
2.7 KiB
JavaScript
addEventListener('fetch', event => event.respondWith(handleRequest(event.request)));
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/**
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* Respond to the request
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* @param {Request} request
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*/
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async function handleRequest(request) {
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const result = {
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success: false,
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title: '',
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cover: '',
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author: '',
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};
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const origin = request.headers.get('origin') || '';
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const responseConfig = {
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status: 200,
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headers: {
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'Content-Type': 'application/json',
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},
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}
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if (origin && (origin.startsWith('https://') || origin.startsWith('http://'))) {
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responseConfig.headers['Access-Control-Allow-Origin'] = origin;
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}
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const articleURL = new URL(request.url).searchParams.get('url');
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try {
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if (!articleURL || !articleURL.startsWith('https://mp.weixin.qq.com')) throw new Error('Invalid URL');
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const articleContent = await fetch(articleURL).then(r => r.text());
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let match = articleContent.match(
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/var nickname = htmlDecode\("(?<author>[\S\s]*?)"\);[\S\s]*?var msg_title = \'(?<title>[\S\s]*?)\'.html\(false\);[\S\s]*?var msg_cdn_url = "(?<cover>[\S\s]*?)";/
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);
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if (!match) {
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// Test case:
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// https://mp.weixin.qq.com/s/_F1sw9yrzMfpARzvHaG_MA
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// https://mp.weixin.qq.com/s/HpfdeLrEkXwlEzSP2yzN1A
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match = articleContent.match(
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/d\.title = xml \? getXmlValue\('title\.DATA'\) : '(?<title>.*?)';[\S\s]*?d\.nick_name = xml \? getXmlValue\('nick_name\.DATA'\) : '(?<author>.*?)';[\S\s]*?d\.cdn_1_1_img = xml \? getXmlValue\('cdn_url_1_1\.DATA'\) : '(?<cover>.*?)';/
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);
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}
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if (!match) throw new Error('Unable to match content');
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result.title = match.groups.title;
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result.author = match.groups.author;
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for (const [k, v] of Object.entries({
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'`': '`',
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''': '\'',
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'"': '"',
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' ': ' ',
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'>': '>',
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'<': '<',
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'¥': '¥',
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'&': '&',
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})) {
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result.title = result.title.replace(new RegExp(k, 'g'), v);
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result.author = result.author.replace(new RegExp(k, 'g'), v);
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}
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const u = new URL('https://images.weserv.nl/');
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for (const [k, v] of Object.entries({
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url: match.groups.cover,
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il: '',
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we: '',
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h: 360,
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q: 70,
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encoding: 'base64',
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})) u.searchParams.set(k, v.toString());
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result.cover = await fetch(u.toString()).then(r => r.text());
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result.success = true;
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console.log(articleURL);
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} catch (error) {
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console.log(error);
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}
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return new Response(JSON.stringify(result), responseConfig);
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} |